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Product guide

Kynup 004-2 Digital Caliper, 150 mm

The Kynup 004-2 digital caliper is listed with an LCD and a 150 mm measuring range for workshop and DIY measuring. Its four measurement functions and unit conversions cover common tasks, while customer feedback is mixed on accuracy and durability.

At a glance

The listing describes a 150 mm range and a resolution of 0.01 mm / 0.0005 in.
Jaws and a depth rod are described for external, internal, depth and step measurements.
The display can switch between millimetres, inches and fractions, with a zero-reset button.
A locking screw and auto-off function are listed.

Price

£15.99Save 20%

Reference price: ~~£19.99~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

Four measurement types make the tool useful for checking dimensions, bores, depths and steps.
Three display-unit options and zero reset support switching between measurement systems and taking relative measurements.
A case and two spare button cells are listed as included.

Technical specifications

13 specifications

Identity
Brand	Kynup
Model	004-2

Display
Screen technology listed	LCD

Measurement
Range	1.5E+2
Claimed accuracy	±001"/0.02mm
Resolution	0.01mm/0.0005"

Functions
Measurement types	external dimensions, internal diameters, depths, and steps
Units	millimeters, inches, and fractions

Dimensions and weight
Dimensions listed	7.6L x 23.3W centimetres
Weight listed	0.16 Kilograms

Materials
Material listed	PLA_(Polylactic_Acid), PE_(Polyethylene), Stainless Steel

Power and operation
Battery requirement	1 LR44 batteries required.
Auto-off	Auto turn-off after 7 min of inactive operation.

What to know before buying

Listing details to confirm

Listing details are inconsistent or unconfirmed: the range is shown as 1.5E+2 while the title and feature text describe 150 mm / 6 in, and the accuracy is variously written as ±001"/0.02mm and ±0.02mm/±0.001". Confirm the intended specifications if exact tolerances matter. The listed material also combines PLA, PE and stainless steel despite the feature text describing a stainless-steel body, and the stated LR44 requirement sits alongside two spare button cells without specifying the battery supplied in the caliper. Customer reports describe mixed accuracy and durability, so this is not evidence of a guaranteed service life or precision.

What’s in the box

Included

1 digital caliper
1 vernier caliper case
2 extra button cells

Who is it for?

A good fit for

DIY and woodworking users who need a compact caliper for external, internal, depth and step measurements.
Buyers who want millimetre, inch and fraction readings on one tool.

Less suited to

Users who need independently verified accuracy or dependable long-term performance for critical measurement work.
Buyers who need clearly documented construction materials or battery configuration.

Kynup 004-2 Digital Caliper, 150 mm · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 13,703 ratings

5 stars73%73%
4 stars17%17%
3 stars4%4%
2 stars2%2%
1 star4%4%

Customer feedback highlights a clear, easy-to-read display, solid construction and useful everyday handling, with some positive comments on battery convenience. Accuracy and durability are mixed, including reports of early failures. That matters if the caliper will be used for repeated or critical measurements, especially since the listing's accuracy figures are inconsistent. These are reported experiences, not a guarantee of performance for an individual unit.

Positive themes

Customers describe the display as clear and easy to read.
Feedback mentions solid construction and convenient use at work.

Mixed feedback

Customer feedback is mixed on accuracy and durability, with reports ranging from satisfactory use to early failure.

Frequently asked questions

What measurements can this caliper take?

The listing describes external dimensions, internal diameters, depths and steps using its jaws and depth rod.

Which units can it display?

The listed display options are millimetres, inches and fractions, with a button for zeroing.

What are the stated range and accuracy?

The listing gives the range as 1.5E+2 and elsewhere describes 0–150 mm / 0–6 in. Accuracy is stated in inconsistent formats, so check the notes and confirm the intended specification if tolerance is important.

What comes in the package?

The manufacturer contents list specifies one digital caliper, one vernier caliper case and two extra button cells.